Which Fractional Executive Do You Need?
Fractional CTO, CAIO, CFO, COO, CIO, CISO — the titles are handed out cheaply and the scopes overlap. Ignore the titles and look at which function in your company is failing right now. This page maps the symptom to the seat, and says plainly which two of them I take and which I don't.
A fractional executive is a senior leader — CTO, CFO, COO, CIO, CISO, or Chief AI Officer — who runs one function part-time for a fixed monthly retainer instead of a full-time salary and equity. The accountability for that function is the same; you simply buy the two or three days a week the company actually needs. Oleg Sotnikov works as a fractional CTO and Chief AI Officer: technology, engineering teams, and AI adoption. Finance, operations, and security are separate disciplines, and this guide exists to point you at the right seat even when it isn't his.
What Each Fractional Executive Owns
Six seats, and the symptoms that put you in each one.
Fractional CTO
Product engineering: architecture, build-versus-buy calls, delivery, the engineering team, and the technical risk a board or an investor will eventually ask about.
Signs you need this one
- Releases keep slipping and nobody can explain why in technical terms.
- Engineers are hired on instinct, and your best developer now manages five people and ships nothing.
- Due diligence is coming and no one owns the answers about architecture, security, or scale.
Engagement shape: Two or three days a week, month-to-month. My own range is $5,000–10,000 per month; the wider market runs $8,000–25,000.
Fractional Chief AI Officer
AI strategy and everything under it: which models and vendors you use, what the written policy allows, what the LLM bill buys, and whether the tools reach real work.
Signs you need this one
- AI spend shows up on the card statement and nobody can say what it bought.
- Teams have piloted tools for months and none of it reached production.
- A customer or an auditor has asked how you govern AI, and the answer is being written on the spot.
Engagement shape: Usually combined with the CTO seat rather than bought separately. Same retainer range, month-to-month.
Fractional CFO
The money: runway, the financial model, cash flow, pricing, the books an investor or acquirer will open, and the mechanics of a raise.
Signs you need this one
- You cannot state your runway to the month without rebuilding the spreadsheet.
- A raise or a sale is coming and the books were kept for taxes, not for diligence.
- Pricing changed by feel and margin moved in a direction nobody predicted.
Engagement shape: Typically a set number of days per month, heavier around monthly close, board meetings, and a live fundraise.
Fractional COO
How the company runs day to day: process, hiring outside engineering, vendors, support, and the handoffs between departments that nobody currently owns.
Signs you need this one
- Every department works and the seams between them do not.
- The founder has become the escalation path for everything, including work they never chose to own.
- Headcount grew and output did not.
Engagement shape: Often heavier at the start while process gets built, then lighter once the team runs it without help.
Fractional CIO
Internal technology: the systems employees use, identity and access, integrations between business tools, IT support, and the vendor contracts underneath all of it.
Signs you need this one
- Onboarding one employee takes a week of manual account creation across a dozen tools.
- The SaaS estate has grown past the point where anyone knows what is paid for or who still has access.
- Business teams buy their own tools and hand them to IT to integrate afterwards.
Engagement shape: A steady monthly commitment: systems, vendors, and internal support don't spike the way projects do.
Fractional CISO
Security and compliance: the security program, risk decisions, incident response, and the evidence behind SOC 2, ISO 27001, or a customer's security questionnaire.
Signs you need this one
- Enterprise deals stall in the security review.
- A framework deadline exists and no named person owns the controls.
- Tools generate alerts and acting on them is nobody's job.
Engagement shape: Frequently tied to an audit or a customer deadline, then a lighter ongoing cadence to keep the evidence current.
Only the technology seats carry published numbers on this site: $5,000–10,000 per month for my fractional CTO work, against a market range of $8,000–25,000. Rates for CFO, COO, CIO, and CISO depend on the market and the scope, and I won't invent a figure for a role I don't sell.
Start From Where It Hurts
The fastest way to pick is to name the function that is breaking, not the title you think is missing.
Runway is unclear, the books are a mess, or a raise is coming.
Fractional CFO
Financial discipline first. Every other decision gets easier once the numbers can be trusted.
Delivery is chaotic: dates slip, scope moves, and the team looks busy the whole time.
CTO or COO
If the chaos lives inside engineering, it is a CTO problem. If it lives between departments, it is a COO problem. This is the call people get wrong most often.
Product and architecture decisions are made by whoever argues hardest.
Fractional CTO
Someone has to own the technical direction and the tradeoffs sitting behind it.
There is AI spend, there are AI vendors, there is board pressure — and no owner.
Fractional CAIO
Strategy, policy, spend control, and adoption. In practice the same person as the CTO.
Security questionnaires, an audit deadline, or a customer demanding SOC 2.
Fractional CISO
Bring in the security specialist. A CTO can prepare the engineering side, but the program needs its own owner.
Internal systems and IT are creaking as headcount grows.
Fractional CIO
Internal technology is a different job from product technology, even though both words say technology.
These lines are blurrier in practice than on this page. In a 20-person company the CTO usually absorbs the CIO and CISO work, and the COO absorbs finance operations; the split hardens as you grow. If two rows describe you, start with the one costing money this quarter.
One Person, Two Seats
Some fractional roles stack cleanly. Others should stay apart.
CTO and CAIO stack
Technology strategy and AI strategy answer to the same constraints: the same architecture, the same data, the same engineers, the same budget. Split them and you get two roadmaps that argue with each other. This is the combination I take on — technical direction, plus the AI roadmap, policy, spend, and adoption that sit inside it.
Finance, operations, and security don't
A fractional CFO is a career finance person and a CISO is a career security person. The training is different, and so is the personal liability that comes with the seat. A technologist doing a passable impression of either is worse than nobody, because it postpones the real hire. I don't sell those seats: when your problem is one of them, hire that specialist.
One person covering two functions is only worth buying when the functions share the same constraints. Otherwise you have bought half of two jobs.
The Seats I Take
Technology and AI, described in full on their own pages.
Frequently Asked Questions
What is a fractional executive?
A fractional executive is a senior leader who runs one function part-time for a fixed monthly retainer, instead of joining full-time on salary and equity. The common seats are CTO, CFO, COO, CIO, CISO, and Chief AI Officer. What you buy is accountability for a function rather than advice about it: the person makes the decisions, carries the outcome, and reports to the founder or the board like any other executive.
What is the difference between a fractional executive and a consultant?
A consultant delivers a project and leaves; a fractional executive holds a seat. The consultant's output is a recommendation, and somebody inside your company still has to decide and execute. A fractional executive makes those decisions, owns the result, sits in your leadership meetings, and works on a rolling monthly basis rather than to a statement of work.
How much does a fractional executive cost?
It depends on the role, and no honest universal number covers all six seats. For the technology seat I can be specific: my fractional CTO work is $5,000–10,000 per month, and market fractional CTO retainers run $8,000–25,000 per month. For CFO, COO, CIO, and CISO the range varies by market and scope, so treat a single quoted figure for all of them as a guess.
Can one person be both a fractional CTO and a fractional CAIO?
Yes, and it is usually the better arrangement. AI strategy depends on the same architecture, data, engineers, and budget as technology strategy, so separating the two produces roadmaps that compete for the same capacity. I hold both seats: technical direction plus the AI roadmap, policy, spend, and adoption. Finance, operations, and security are different disciplines and belong with their own specialists.
How many hours per week does a fractional executive work?
Most engagements land between one and three days a week per function, and the shape matters more than the total. Expect a fixed weekly rhythm — leadership meetings, decision reviews, one-to-ones with whoever reports into that function — plus availability when something breaks. The first month usually runs heavier while context is being built, then it settles. If a fractional executive is booked four or five days a week, you are paying retainer rates for a full-time hire.
Tell Me Which Function Is Failing
One call. If the answer is technology or AI, I can take the seat. If it is finance, operations, or security, I'll tell you what to look for in that hire.
Month-to-month, cancel anytime. 3 client slots open for 2026.
Related reading
How part-time leadership works once the retainer starts.
